15857120

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 40642560

約数和(自身を除く): 24785440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 80, 92, 115, 124, 139, 155, 160, 184, 230, 248, 278, 310, 368, 460, 496, 556, 620, 695, 713, 736, 920, 992, 1112, 1240, 1390, 1426, 1840, 2224, 2480, 2780, 2852, 3197, 3565, 3680, 4309, 4448, 4960, 5560, 5704, 6394, 7130, 8618, 11120, 11408, 12788, 14260, 15985, 17236, 21545, 22240, 22816, 25576, 28520, 31970, 34472, 43090, 51152, 57040, 63940, 68944, 86180, 99107, 102304, 114080, 127880, 137888, 172360, 198214, 255760, 344720, 396428, 495535, 511520, 689440, 792856, 991070, 1585712, 1982140, 3171424, 3964280, 7928560, 15857120]

約数ペア:

[(1, 15857120), (2, 7928560), (4, 3964280), (5, 3171424), (8, 1982140), (10, 1585712), (16, 991070), (20, 792856), (23, 689440), (31, 511520), (32, 495535), (40, 396428), (46, 344720), (62, 255760), (80, 198214), (92, 172360), (115, 137888), (124, 127880), (139, 114080), (155, 102304), (160, 99107), (184, 86180), (230, 68944), (248, 63940), (278, 57040), (310, 51152), (368, 43090), (460, 34472), (496, 31970), (556, 28520), (620, 25576), (695, 22816), (713, 22240), (736, 21545), (920, 17236), (992, 15985), (1112, 14260), (1240, 12788), (1390, 11408), (1426, 11120), (1840, 8618), (2224, 7130), (2480, 6394), (2780, 5704), (2852, 5560), (3197, 4960), (3565, 4448), (3680, 4309)]